Sembcorp Marine completes offshore wind farm substations for Hornsea Two

Sembcorp Marine has successfully completed the fabrication of the Offshore Substation (OSS) and Reactive Compensation Station (RCS) for Ørsted Wind Power subsidiary Optimus Wind Limited. The Substations are now on their way to the Hornsea Two Offshore Wind Farm in the UK.

Constructed at Sembcorp Marine’s integrated facilities, the OSS is the largest AC offshore substation and together with the RCS, they have a combined weight of 10,200 tonnes. In addition to fabrication, Sembcorp Marine spearheaded the engineering, procurement, hook-up and commissioning works for the Substations.

Located in the North Sea some 89 km off the Yorkshire Coast, Hornsea Two spans an offshore area of 462 km2 and will be the world’s largest wind farm when it goes into operation in 2022. With capacity of 1.4 GW, the farm will provide power to more than 1.3 million homes in the United Kingdom.

“We thank Ørsted Wind Power and Optimus Wind for their trust in Sembcorp Marine’s capability to deliver these functional engineering solutions to their desired quality,” said Sembcorp Marine Head of Offshore Platforms Mr Samuel Wong. “These Substations, along with the OSS and RCS jacket foundations that were delivered by Sembcorp Marine in August 2020, demonstrate the Group’s commitment to meet the challenge of delivering these structures safely amid this pandemic.”

The Substations will reach their destination at end-September 2021 for integration with their jackets. Installation of the OSS and RCS jacket foundations was completed in October 2020 by Sleipnir, the world’s strongest semi-submersible crane vessel built by Sembcorp Marine.